CVE-2007-1844 in Topsites PHP
Summary
by MITRE
Multiple PHP remote file inclusion vulnerabilities in Aardvark Topsites PHP 5 allow remote attackers to execute arbitrary PHP code via a URL in the path parameter to (1) button/settings_sql.php, (2) settings_sql.php, and (3) sources/misc/new_day.php.
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Analysis
by VulDB Data Team • 10/22/2017
The vulnerability identified as CVE-2007-1844 represents a critical remote file inclusion flaw affecting Aardvark Topsites PHP version 5, which falls under the broader category of insecure direct object references and remote code execution vulnerabilities. This issue stems from inadequate input validation within the application's handling of user-supplied parameters, specifically the path parameter used in three distinct script files. The vulnerability enables attackers to inject malicious URLs that are then processed by the application, creating an opportunity for arbitrary code execution on the target system.
The technical implementation of this vulnerability occurs through the improper sanitization of user input in the path parameter, which is utilized in the three identified files: button/settings_sql.php, settings_sql.php, and sources/misc/new_day.php. When an attacker supplies a malicious URL as the path parameter value, the application's code fails to validate or sanitize this input before using it in file inclusion operations. This weakness directly maps to CWE-434, which describes insecure file upload and download scenarios, and CWE-94, which addresses improper execution of code through code injection. The vulnerability exploits the application's trust in user-provided data without proper validation mechanisms, allowing attackers to manipulate the application's execution flow.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with the capability to gain full control over the affected web server. Successful exploitation could enable unauthorized users to execute malicious commands, access sensitive data, modify application behavior, or establish persistent access through backdoor installation. The vulnerability affects the core functionality of the Aardvark Topsites PHP application, potentially compromising the entire web hosting environment where the application resides. Attackers could leverage this vulnerability to perform reconnaissance activities, escalate privileges, or use the compromised server as a launching point for further attacks against the internal network infrastructure. The vulnerability's remote nature means that attackers do not require physical access to the system, making it particularly dangerous for web applications that are publicly accessible.
Mitigation strategies for CVE-2007-1844 should focus on implementing comprehensive input validation and sanitization mechanisms throughout the application's codebase. The primary defense involves eliminating the use of user-supplied parameters in file inclusion operations by implementing strict whitelisting of acceptable values or using a configuration-based approach for file selection. Organizations should also implement proper parameter validation, ensuring that all user inputs are properly sanitized before being processed by the application. The solution aligns with ATT&CK technique T1059.007, which describes the use of remote code execution capabilities, and requires defensive measures such as input validation, secure coding practices, and regular security assessments. Additionally, application hardening through proper configuration management, network segmentation, and regular patch management should be implemented to reduce the attack surface and prevent exploitation of similar vulnerabilities in the future.